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/*
 * This file is part of ***  M y C o R e  ***
 * See http://www.mycore.de/ for details.
 *
 * MyCoRe is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * MyCoRe is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with MyCoRe.  If not, see .
 */

package org.mycore.util.concurrent;

import java.util.concurrent.atomic.AtomicLong;
import java.util.function.Supplier;

/**
 * A supplier with a priority.
 *
 * stackoverflow
 *
 * @author Matthias Eichner
 *
 * @param   the type of results supplied by this supplier
 */
public class MCRPrioritySupplier implements Supplier, MCRPrioritizable {

    private static AtomicLong CREATION_COUNTER = new AtomicLong(0);

    private Supplier delegate;

    private int priority;

    private long created;

    public MCRPrioritySupplier(Supplier delegate, int priority) {
        this.delegate = delegate;
        this.priority = priority;
        this.created = CREATION_COUNTER.incrementAndGet();
    }

    @Override
    public T get() {
        return delegate.get();
    }

    @Override
    public int getPriority() {
        return this.priority;
    }

    @Override
    public long getCreated() {
        return created;
    }
}